<template>
  <div>
    <el-row>
      <el-col :span="24">
        <el-form :inline="true" :model="dataForm">
          <el-form-item label="分类">
            <category-cascader
              :catelogPath.sync="catelogPath"
            ></category-cascader>
          </el-form-item>
          <el-form-item label="品牌">
            <brand-select
              @id="change"
              :attrGroups="attrGroups"
              style="width: 160px"
            ></brand-select>
          </el-form-item>
          <el-form-item label="状态">
            <el-select style="width: 160px" v-model="dataForm.status" clearable>
              <el-option label="新建" :value="0"></el-option>
              <el-option label="上架" :value="1"></el-option>
              <el-option label="下架" :value="2"></el-option>
            </el-select>
          </el-form-item>
          <el-form-item label="检索">
            <el-input
              style="width: 160px"
              v-model="dataForm.key"
              clearable
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="searchSpuInfo">查询</el-button>
          </el-form-item>
        </el-form>
      </el-col>
      <el-col :span="24">
        <spuinfo ref="spuinfo" :catId="catId"></spuinfo>
      </el-col>
    </el-row>
  </div>
</template>

<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';
import CategoryCascader from "../common/category-cascader";
import BrandSelect from "../common/brand-select";
import Spuinfo from "./spuinfo";
export default {
  //import引入的组件需要注入到对象中才能使用
  components: { CategoryCascader, Spuinfo, BrandSelect },
  props: {},
  data() {
    //这里存放数据
    return {
      catId: 0,
      id: "",
      catelogPath: [],
      dataForm: {
        status: "",
        key: "",
        brandId: 0,
        catelogId: 0,
      },
      catPathSub: null,
      brandIdSub: null,
      attrGroups: [],
    };
  },
  //计算属性 类似于data概念
  computed: {},
  //监控data中的数据变化
  watch: {
    catelogPath(path) {
      //监听到路径变化需要查出这个三级分类的分组信息
      // console.log("路径变了", path);
      this.attrGroups = [];
      this.dataForm.brandId = "";
      this.dataForm.catelogId = path[path.length - 1];
      // console.log("分类发生了变化：",this.dataForm.catelogId)
      if (path && path.length == 3) {
        this.$http({
          url: this.$http.adornUrl(
            `/product/categorybrandrelation/brands/list`
          ),
          method: "get",
          params: this.$http.adornParams({ catId: path[path.length - 1] }),
        }).then(({ data }) => {
          if (data && data.code === 0) {
            console.log(data.data);
            this.attrGroups = data.data;
          } else {
            this.$message.error(data.msg);
          }
        });
      } else if (path.length == 0) {
        this.dataForm.catalogId = "";
      } else {
        this.$message.error("请选择正确的分类");
        this.dataForm.catalogId = "";
      }
    },
  },
  //方法集合
  methods: {
    change(val) {
      this.dataForm.brandId = val
    },
    searchSpuInfo() {
      console.log("搜索条件", this.dataForm);
      this.$refs.spuinfo.search(this.dataForm);
    },
  },
  //生命周期 - 创建完成（可以访问当前this实例）
  created() {},
  //生命周期 - 挂载完成（可以访问DOM元素）
  mounted() {
    this.catPathSub = PubSub.subscribe("catPath", (msg, val) => {
      this.dataForm.catelogId = val[val.length - 1];
    });
    this.brandIdSub = PubSub.subscribe("brandId", (msg, val) => {
      this.dataForm.brandId = val;
    });
  },
  beforeCreate() {}, //生命周期 - 创建之前
  beforeMount() {}, //生命周期 - 挂载之前
  beforeUpdate() {}, //生命周期 - 更新之前
  updated() {}, //生命周期 - 更新之后
  beforeDestroy() {
    PubSub.unsubscribe(this.catPathSub);
    PubSub.unsubscribe(this.brandIdSub);
  }, //生命周期 - 销毁之前
  destroyed() {}, //生命周期 - 销毁完成
  activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style scoped>
</style>